<template>
  <div class="icons">
    <swiper :options='swiperOption'>
      <swiper-slide v-for="(page,index) in pages" :key="index">
        <div class="icon" v-for="item in page" :key="item.id">
          <div class="icon-container">
             <img class="icon-img" :src="item.imgUrl">
             <p class="icon-desc">{{item.desc}}</p>
          </div>
        </div>
      </swiper-slide>
    </swiper>
  </div>
</template>
<script>
export default {
  name: 'HomeIcons',
  props: {
    iconList: Array
  },
  data () {
    return {
      swiperOption: {
        autoplay: false
      }
    }
  },
  computed: {
    pages () {
      const pages = []
      this.iconList.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    }
  }
}
</script>
<style lang="stylus" scoped>
.icons>>>.swiper-container
  height 0
  padding-bottom: 50%
.icons
  margin-top: .1rem
  height 0
  overflow hidden
  padding-bottom: 50%
  .icon
    position relative
    float: left
    width 25%
    padding-bottom: 25%
    .icon-container
      position absolute
      top: 0
      left: 0
      right: 0
      bottom :.44rem
      box-sizing: border-box
      padding-top: .1rem
      .icon-img
        display: block
        margin: 0 auto
        height: 100%
      .icon-desc
        overflow hidden
        color: #333
        height 0.44rem
        line-height: 0.44rem
        text-align: center
        white-space: nowrap
        text-overflow: ellipsis
</style>
